In a recent study investigating changes in intracranial blood concluded that blood flow decreased post injury and improvements toward control values occurred in only 27% of the participants at 14 days and 64% at .30 days after SRC. The significance of this finding may help healthcare providers closer to finding more accurate testing methods for concussions, quantifiable information to detect severity, speed of recovery and safety. Something Harvard may want to get the hands into with the recent 100Mil NFL donation for their research purposes. See full Study. GE is also working on devices that may assist on improving imaging that may be sensitive to concussions.